Question

A trucking company determined that the distance traveled per truck per year is normally​ distributed, with a mean of 70 thousand miles and a standard deviation of 10 thousand miles. Complete parts​ (a) through​ (c) below. a. nbsp What proportion of trucks can be expected to travel between 59 and 70 thousand miles in a​ year? The proportion of trucks that can be expected to travel between 59 and 70 thousand miles in a year is nothing. ​(Round to four decimal places as​ needed.) b. nbsp What percentage of trucks can be expected to travel either less than 45 or more than 80 thousand miles in a​ year? The percentage of trucks that can be expected to travel either less than 45 or more than 80 thousand miles in a year is nothing​%. ​(Round to two decimal places as​ needed.) c. nbsp How many miles will be traveled by at least 65​% of the​ trucks? The amount of miles that will be traveled by at least 65​% of the trucks is nothing miles

Answer 1